![](https://i0.wp.com/andrea.monti.photography/wp-content/uploads/2023/01/jjc-scaled.jpg?resize=1140%2C762&ssl=1)
Unattainable 1:1 magnification with the JJC FDA S-1 and Micro Nikkor 60 2,8
The JJC FDA S-1 does not allow a 1:1 magnification with the Micro Nikkor 60 2,8. It only reaches a smaller factor (about 80%.
The probable reason is the excessive lenght of the original step-down ring.
Using a thinner step-down ring, as it has been done in this video, does not improve the outcome.
![](https://i0.wp.com/andrea.monti.photography/wp-content/uploads/2023/02/floating.jpg?resize=75%2C75&ssl=1)
![](https://i0.wp.com/andrea.monti.photography/wp-content/uploads/2023/01/Affinity-scaled.jpeg?resize=75%2C75&ssl=1)